package com.cherry.config;

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.LinkedHashMap;
import java.util.Map;

/**
 * @create 2020-04-24 16:18
 * @function:
 **/
@Configuration
public class ShiroConfig {

    //ShiroFilterFactoryBean
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("securityManager") DefaultWebSecurityManager defaultWebSecurityManager){
        ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean();
        //设置安全管理器
        bean.setSecurityManager(defaultWebSecurityManager);
        /**
         * 添加Shiro的内置过滤器
         * anon:无需认证就可以访问
         * authc:必须认证了才能访问
         * user:必须拥有"记住我"功能才能用
         * perms:拥有对某个资源的权限才能访问
         * role:拥有某个角色权限才能访问
         */
//        filterMap.put("/user/add","authc");
//        filterMap.put("/user/update","authc");


        Map<String,String> filterMap = new LinkedHashMap<>();

        //授权,没有访问权限的用户会跳转到未授权页面
        filterMap.put("/user/add","perms[user:add]");
        filterMap.put("/user/update","perms[user:update]");

        //拦截,user下的所有页面需要登录认证后才能访问
        filterMap.put("/user/*","authc");

        bean.setFilterChainDefinitionMap(filterMap);

        //设置登陆的请求
        bean.setLoginUrl("/toLogin");

        //设置未授权请求
        bean.setUnauthorizedUrl("/noauth");

        return bean;
    }

    //DefaultWebSecutiryManeger
    @Bean(name = "securityManager")
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //关联UserRealm
        securityManager.setRealm(userRealm);//通过传参引入自定义的userRealm对象
        return securityManager;
    }

    //自定义 realm 对象
    @Bean //参数和对象名一致,name属性可省略
    public UserRealm userRealm(){
        return new UserRealm();
    }

    //整合ShiroDialect:用来整合 shiro thymeleaf
    @Bean
    public ShiroDialect getShiroDialect(){
        return new ShiroDialect();
    }
}
